| Pb、Cr、Cd单一及其复合污染胁迫对小麦膜保护系统的影响 |
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| 引用本文： | 张晓文.Pb、Cr、Cd单一及其复合污染胁迫对小麦膜保护系统的影响[J].大同职业技术学院学报,2004(2). |
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| 作者姓名： | 张晓文 |
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| 作者单位： | 大同职业技术学院数理系 山西 |
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| 摘 要： | 通过hoagland溶液培养实验,研究小麦在Pb、Cr、Cd三种重金属单一及其复合胁迫下,植物叶组织超氧物歧化酶(SOD)、过氧化物酶(POD)、过氧化氢酶(CAT)的活性变化。结果表明,Pb、Cr、Cd的单一胁迫总体上使SOD、POD和CAT活性增加,复合胁迫使SOD和VAT活性降低,POD活性增加。但也有例外,如Cd的单一胁迫降低了POD的活性,而复合胁迫则使POD的活性升高。
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| 关 键 词： | 小麦 互作 复合污染 生理性状 |
The Pollution Effects of the Single and Composite Stress of Pb,Cr and Cd on Protection System of Wheat Membrane |
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| Zhang Xiaowen Mathematics & Physics.The Pollution Effects of the Single and Composite Stress of Pb,Cr and Cd on Protection System of Wheat Membrane[J].Journal of Datong Vocational College,2004(2). |
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| Authors: | Zhang Xiaowen Mathematics & Physics |
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| Institution: | Zhang Xiaowen Mathematics & Physics Department,Datong Vocational College,Datong Shanxi,China 037008 |
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| Abstract: | By the experiment with hoagland solution, the author studies the activity change of wheat leaf texture with
superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT) under the single and composite stress of plumbum (Pb),
chromium (Cr) and cadmium (Cd) as three elements of heavy metal. The result indicates that the activity of SOD, POD
and CAT can increase, and as a whole the activity of Pb, Cr, and Cd can decrease. Except for that, the single stress of Cd
can decrease the activation of POD and the composite stress of Pb,Cr and Cd can increase the activation of POD. |
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| Keywords: | wheat interaction composite pollution physiologicaak type |
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